In 1540 Melanchthon expressed himself as satisfied with the condition of learning which prevailed in them.[125] But among others whose opinion was less favourable we find Luther’s friend Justus Jonas, who, two years before this, in 1538, wrote, that, since the Evangel had begun to make its way through Germany, the Universities were silent as the grave.[126] The testimony of Rudolf Walther, a Swiss, who had visited many German Universities and been on terms of intimacy with eminent Protestant theologians, must also receive special attention. In 1568 he wrote—though his words may perhaps be somewhat discounted by his own theological isolation—“The German Universities are now in such a state that, to say nothing of the conceit and carelessness of the professors and the impudent immorality which prevails, they are in no way remarkable. Heidelberg, however, is praised more than the others, for the attacks which menace her on all sides do not allow this University to slumber.”[127] Heidelberg was the chief educational centre of those who held Calvinistic views. Since 1580 the attendance at the University had notably increased owing to the influx of students from abroad. Towards the close of the century, with Wittenberg and Jena, it headed the list of the Universities of the new faith in respect of the number of matriculations. Jena, like its sister Universities of Marburg, Königsberg and Helmstädt, had been founded as a seminary of Protestant theology and at the same time of Roman law, which served to strengthen the absolutism of the princes. Since the appointment of Flacius Illyricus in 1557 it had become a stronghold of pure Lutheranism. The theological squabbles within the bosom of Protestantism, here as in the other Universities, were, however, disastrous to peace, and any healthy progress. Characteristic of the treatment meted out to the professors by Protestant statesmen of a different opinion, even when they were not summarily dismissed, is the discourse of the Saxon Chancellor, Christian Brück, to the professors of the theological Faculty at Jena in 1561: “You black, red and yellow knaves and rascals! A plague upon you all you shameless scamps and rebels! Would that you were knocked on the head, disgraced and blinded!”[128]